# Process studio in windows Installation Error **URL:** \ **Category:** Process Studio\ **Tags:** rpa\ **Created:** [August 24, 2021, 10:12am UTC](https://community.automationedge.com/t/process-studio-in-windows-installation-error/4633 "2021-08-24T10:12:04Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Arun9047](https://avatars.discourse-cdn.com/v4/letter/a/b2d939/32.png) [@Arun9047](https://community.automationedge.com/u/Arun9047)\ **Post date:** [August 24, 2021, 10:12am UTC](https://community.automationedge.com/t/process-studio-in-windows-installation-error/4633/1 "2021-08-24T10:12:04Z")
![image](https://canada1.discourse-cdn.com/flex027/uploads/automationedge/original/1X/f61ef1e5d6f6195262702c3138effdeff4b1f9e9.png) ---
**Author:** ![KalyaniW](https://avatars.discourse-cdn.com/v4/letter/k/71e660/32.png) [@KalyaniW](https://community.automationedge.com/u/KalyaniW)\ **Post date:** [August 25, 2021, 5:39am UTC](https://community.automationedge.com/t/process-studio-in-windows-installation-error/4633/2 "2021-08-25T05:39:16Z")
Hello @Arun9047 There can two possibilities - 1] AutomationEdge license has been expired or 2]The license which you’ve uploaded on AutomationEdge is invalid. Note - Make sure the license is valid and not expired. Once this is done, Process Studio will run successfully, by taking the valid license. ---
**Author:** ![Arun9047](https://avatars.discourse-cdn.com/v4/letter/a/b2d939/32.png) [@Arun9047](https://community.automationedge.com/u/Arun9047)\ **Post date:** [September 29, 2021, 8:52am UTC](https://community.automationedge.com/t/process-studio-in-windows-installation-error/4633/3 "2021-09-29T08:52:36Z")
Hi, I have uploaded the license and the started the instance but while login to the process studio its showing license expired. what i have to do for process studio after the uploading the license. i need asistence. ---
**Author:** ![rakesh.kale](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@rakesh.kale](https://community.automationedge.com/u/rakesh.kale)\ **Post date:** [September 29, 2021, 5:55pm UTC](https://community.automationedge.com/t/process-studio-in-windows-installation-error/4633/4 "2021-09-29T17:55:25Z")
Hi Arun, What type of license you are using? Trail/UAT/DEV/Subscription? Can you log in to your AE server and share the screenshot of the **Home** page. ---
**Author:** ![Arun9047](https://avatars.discourse-cdn.com/v4/letter/a/b2d939/32.png) [@Arun9047](https://community.automationedge.com/u/Arun9047)\ **Post date:** [September 29, 2021, 6:08pm UTC](https://community.automationedge.com/t/process-studio-in-windows-installation-error/4633/5 "2021-09-29T18:08:26Z")
i am using subscription and dev ---
**Author:** ![Arun9047](https://avatars.discourse-cdn.com/v4/letter/a/b2d939/32.png) [@Arun9047](https://community.automationedge.com/u/Arun9047)\ **Post date:** [September 29, 2021, 6:16pm UTC](https://community.automationedge.com/t/process-studio-in-windows-installation-error/4633/6 "2021-09-29T18:16:17Z")
![da](https://canada1.discourse-cdn.com/flex027/uploads/automationedge/original/1X/8ed92cc2f18426adf8dcee701cad03d04db6768b.png) ![da2](https://canada1.discourse-cdn.com/flex027/uploads/automationedge/original/1X/946b4f1b07b9c6ae96fb289bd2be76737a0354c7.png) here is my both servers. last week renewed and license uploaded successfully… but the existing process studio i can’t login. i tried to install it in another machine but same error. licence expired. ---
**Author:** ![rakesh.kale](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@rakesh.kale](https://community.automationedge.com/u/rakesh.kale)\ **Post date:** [September 29, 2021, 6:27pm UTC](https://community.automationedge.com/t/process-studio-in-windows-installation-error/4633/7 "2021-09-29T18:27:15Z")
Hi Arun, I hope you are connecting your process-studio to the **Dev** server and not to the **Prod(Subscription)** server. You can’t use process-studio with a **Subscription** license. I can see 2 PS in your **Dev** license and both of them are consumed. If you have registered 2 process-studio with the Dev server earlier and trying to start the 3rd process-studio then it’ll throw an error. You have to de-register 1 of your process-studio first to start a new PS. ---
**Author:** ![Arun9047](https://avatars.discourse-cdn.com/v4/letter/a/b2d939/32.png) [@Arun9047](https://community.automationedge.com/u/Arun9047)\ **Post date:** [September 29, 2021, 6:39pm UTC](https://community.automationedge.com/t/process-studio-in-windows-installation-error/4633/8 "2021-09-29T18:39:27Z")
Thank you, now my new process studio register with new user. But i can’t de-register or login to older one its showing "“process studio already register with the user” but used same user name and paswd ---
**Author:** ![rakesh.kale](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@rakesh.kale](https://community.automationedge.com/u/rakesh.kale)\ **Post date:** [October 1, 2021, 7:20pm UTC](https://community.automationedge.com/t/process-studio-in-windows-installation-error/4633/9 "2021-10-01T19:20:51Z")
Hi Arun, You can de-register it from the AutomationEdge server as well. - Login to your AE account with Tenant-admin credentials - Go to the **Process-Studio** section - Click on **Assign License** and de-assign the license for a specific user If you are using a T3 cloud instance, then the de-registration will happen after 24 hours. ---
**Author:** ![Arun9047](https://avatars.discourse-cdn.com/v4/letter/a/b2d939/32.png) [@Arun9047](https://community.automationedge.com/u/Arun9047)\ **Post date:** [October 4, 2021, 6:41am UTC](https://community.automationedge.com/t/process-studio-in-windows-installation-error/4633/10 "2021-10-04T06:41:16Z")
### Explore the forum # [Error! : Can not instantiate browser due to compatibility issue](https://community.automationedge.com/t/error-can-not-instantiate-browser-due-to-compatibility-issue/4847) Kindly help to resolve this error.. and i need to know another one thing.. while we purchase license how many agents will allocated for subscription and dev